This is a 4-pole high pass VCF circuit with controllable resonance. It uses diodes as the controlling element.
Compatable in +/-12V or +/-15V systems. Low Parts Count. PC Mounted pots, and mounting holes. Eurorack and MOTM connecter pads for maximum build flexibility.
This is the sound of a saw wave being input through the filter and having the filter range swept through 4 times. THe first sweep is at 0% resonance, next 50%, then 80% and finally 100%.
For complete descriptions of the way the module is used, and how to build it, including schematics and parts list; download this PDF file.
Boards are available now. Price for 1 PCB is $8.
Unfinished eurorack
panels are available for this project, they are 6HP and cost $8 each.
There is
more information here about panels. If you're interested in drilling your own panel for
this project, feel free to use my
drill guide. That image should be printed at 300dpi for proper
scaling.
